Articles | Volume 19, issue 23
Research article
09 Dec 2019
Research article |  | 09 Dec 2019

Variability in a four-network composite of atmospheric CO2 differences between three primary baseline sites

Roger J. Francey, Jorgen S. Frederiksen, L. Paul Steele, and Ray L. Langenfelds


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Roger Francey on behalf of the Authors (04 Sep 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (23 Sep 2019) by Christoph Zellweger
RR by Anonymous Referee #2 (08 Oct 2019)
RR by Anonymous Referee #1 (10 Oct 2019)
ED: Publish subject to technical corrections (21 Oct 2019) by Christoph Zellweger
AR by Roger Francey on behalf of the Authors (28 Oct 2019)  Author's response    Manuscript
Short summary
25-year composites of interhemispheric baseline CO2 differences demonstrate close agreement between 4 monitoring networks. Variability from monthly to multiyear time frames mostly reflects variability in upper troposphere dynamical indices chosen to represent eddy and mean transport interhemispheric exchange. Monthly interhemispheric atmospheric fluxes are much larger than air–surface terrestrial exchanges. The composite differences offer unusual constraints on transport in global carbon models.
Final-revised paper